package org.apache.lucene.analysis.kr.morph;

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Comparator;

public class AnalysisOutputComparator implements Comparator {
	public int compare(Object o1, Object o2) {
		
		AnalysisOutput out1 = (AnalysisOutput)o1;
		AnalysisOutput out2 = (AnalysisOutput)o2;
		
		int score = out2.getScore()-out1.getScore();
		int pattern = out2.getPatn()-out1.getPatn();
		int len = out1.getStem().length()-out2.getStem().length();
		
		if(score!=0) return score;
		
		if(out2.getScore()==AnalysisOutput.SCORE_CORRECT &&
				out1.getScore()==AnalysisOutput.SCORE_CORRECT) {
			pattern = out1.getPatn()==PatternConstants.PTN_N || out1.getPatn()==PatternConstants.PTN_AID ? -1 : pattern;
			pattern = out2.getPatn()==PatternConstants.PTN_N || out2.getPatn()==PatternConstants.PTN_AID ? 1 : pattern;
		}
		
		if(pattern!=0) return pattern;
		
		return len;
	}
}
